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Finding the Fourth Proportional to 201,143.21, 277,546.80 and 116,243.89

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Solution

The fourth proportional to 201,143.21, 277,546.80 and 116,243.89 is: 160,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,143.21 : 277,546.80 = 116,243.89 : x
  2. Step 2: Convert to fraction form
    201,143.21/277,546.80 = 116,243.89/x
  3. Step 3: Cross multiply
    201,143.21x = 277,546.80 × 116,243.89
  4. Step 4: Simplify right side
    201,143.21x = 32,263,119,689.05
  5. Step 5: Solve for x
    x = 32,263,119,689.05/201,143.21
  6. Step 6: Final answer
    x = 160,398.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.